Open AccessInfluence of spherical aberration of the thermal lens on the mode profile of a large-volume TEM00-mode resonator
Author(s) -
Chong Liu,
Ge Jian-Hong,
Zhou Xiang,
Jun Chen
Publication year - 2008
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.57.1704
Subject(s) - spherical aberration , optics , resonator , lens (geology) , materials science , diffraction , laser beam quality , beam (structure) , thermal , mode volume , volume (thermodynamics) , mode (computer interface) , laser , physics , laser beams , optical fiber , fiber optic sensor , quantum mechanics , meteorology , computer science , graded index fiber , operating system
The spherical aberration of the thermal lens of the active media is obvious when the solid state lasers are strongly pumped. It can change the mode profile, the single-pass loss, the output power and so on, especially in a large-volume TEM00-mode resonator. The self-consistent mode is calculated using Fox-Li diffraction iterative algorithm. There are side lobes with the fundamental mode when the spherical aberration is introduced, hence the beam quality is degraded. The calculation results agree well with the experimental results. The beam filling factor plays an important role in the design of a laser system. The optimized value of the beam filling factor should be determined experimentally according to the spherical aberration.